Oil-switch box.



H. F. KRANTZ. GIL SWITCH BOX. APPLICATION man JUNE le. i911.

H. F. KRANTZ. on sw'HcH Box.

APPLICATION FILED 'UNE I6, 1917.

Paented Dec. 1G, 1919.

3 SHEETSmSHEET 2.

HUBERT F. KRANTZ, OF BROOKLYN. NEW YORK,

ING- COMPANY, INC., OF BROOKLYN.

ASSIGNOR TO KRANTZ MANUFACTUR- NEV YORK, A CORPORATION OF NEWT YORK.

ouswrron Box.

i.: sesion.

I Application filed June 16, 1917.

Be it known that I. Humeur F. Knax'rz, residingiy at lh'ooklyn. in the county ol Kings and State ot' New York, have invented/certain znew and uset'ul Improvements in Oilbwitch Boxes, ot' which the following is a specification.

This invention relates to an oil switch.

A. particular objectot' the invention is to provide an oil switch ol a character such that. oil contained therein may be readily displaced` without likelihood ot loss, tor the purpose ol inspect-ingrv and repairing any oil the moving` parts ot" the mechanism.

A t'urther object is to provide an oil switch which isfparticularly adapted for use in connection with safety panel boxes and the like.

A. tui-ther object is to provide a switch mechanism pivoted to swinginto and out ot' operative position7 and which, when out of operative position, may be swung vinto a substantially horizontal, or table-like, position for ready inspection and repair.

A.-further object is to provide. a switch i'nechanism, in association with a safety panel box` pivotally mounted so as to swing rigid contact portions ot' the switch mechanism into and out of electrical connection with contact parts fixed within the box, and said switch mechanism includinpr a switch blade operable to control the electrical connection between said rig-id contacts, together with means for insuring' an off position of the switch blade when said rigid contact parts are swung.

A furtheand more detailed object is to provide a` switch mechanism mounted upon the inncrside ot. asafety panel box door which is pivoted to swing' dowmvardlyv from a vertical'to a horizontal position, "and to prov-ide desirable electrical @connections for the switch mechanism. 4'

A further object is to provide suitable barriers or guard members operable for ,guarding vlive contacts of the device when the door is open. Y

Other objects and aims of the invention, more or less specific than those referred to above,-will be in part obvious and in part pointed out inthe course of the following description of the elements, combinations, arrangements of parts and applications of principles, constituting the invention; .and

Specification of Letters Patent.

- and terminate Patented ec. Mi, 1919.

serial No. 175,195.

the scope of protection contemplated will be indicated in the appended claims.

ln the accompanying?r drawings which are to be taken as a part: ot' this specification, and in which I haveshown merely a pret'erred form et' embodiment ot the intention 2 Figure l is a vertical sectional View through a switch mechanism and safetyv panel box constructed in accordance with this inrention the section being' taken substantially upon the plane of line I of Fig'. 2.

Fig. 2 is a vertical sectional view taken substantially upon the plane of line H of Fig'. l, lookine` in the direction oi the arrow7 and parts of the rear ol the device being shown in elevation. and

Fin'. 3 is a diagrammatic illustration showing' the relation ot' all of the parts when the door is open.

Referring to the drawings tor describingin detail the structure which is illustrated therein7 the reference character L indicates thc panel box generally. This may be made up ot any suitable material` either Sheet metal or otherwise, according` to preference. In the drawing' it is shown to be made of sheet metal.

rl`he oil switch mechanism is indicated. generally by the reference. characterI G. lt consists of a casing having a pocket or reservoir l in its lower portion tor containing the oil. A conductor 2 extends upwardly through the bottom wall, being' suitably insulated as at 3, and a conductor 4 extends downwardly thro'ugh the top wall. beine` suitably insulated as at 5. The conductors 2 and i are substantially in axial alinement in spaced contact portions 6 and 7 within the pocket l so that said con tact portions are entirely beneath the oil 8 which contained wit-hin said pocket.

Exteriorly of the lower wall of the pocket the conductor 2 terminates in a contact member 9, while the conductor 1t tern'linates in a contact member l0 above the upper wall of the casing.

The contact members 9 and 10 constitute the parts above referred to as rigid contact parts of the switch mechanism.

The switch mechanism is supported upon the door H of the box which is hinged upon a horizontal axis as at 11 and when the door swings the contacts 9 and 10 move with e pai/al box, as is Clearly seen 'iioin inepeetion of Fig. 3.

The eonaots l2 and 13 are eonneered wiibh main and braneh line Conductors ll. and .l5 in any suitable niannerl A guard member l is fixed to he. door ajaeent ihe hinge. in such manner as io in arnese itself above the eonliae l2 when llie i open, so as lo prwent likelihood oi an operaror accidentallyv eoniingij inlo engageinen with Said Contact l2. i suilahle opening' 1T is provided to enable the. eonl'ael l2 to be reached by the eontaei S) when the door if; closed.

A guard ineniber 18 'for the Contact 13 al the upper end oli he box `iivoled upon a suiable 5bracketl as at li) and is spring pressed, as by a apring` 2O to rai-d a position beneath the Contact 13. llia the posi tion Shown in Fig. ln order lo move `Ehis guard i'neinber down and away Jfrom the. contar# 13 when the door is swung oward CloSed pogifcion the door is preferably provided with a finger l Vfor engi'agl'ingv the edge 22 to cause lhe `guard member lo swingiclownwardly and assume a position elear of the Contact l2 when the door i5 inllj.vv Closed as Shown in l. The, linger 2l, may be mounted dire-elly upon the door or, ,it may be Connected with llie easing {u} of the switch nieehanisni as ehown.r ae desired.

.as many of the bladesl the length of the shaft The barriers or `ejuard ineniberS lll and 1S illustrated may readily be displaeed by other forms of Iguard members if desired. They are illusl'rated only as an example of guardineinbers which are under the eon trol of the -inoving` door 'lioi' protecting' an operator against aeeidenall;y einieagiimT with any of the live parts.

It Should be here stared lilia any suitY able au\iliar}v devices. surli for instance as transforniei nd the like. or 'Fusies may be contained wihin the spaces protected by 'the guard members or lhe)y may even he contained Within the open space 23 within the upper portion of `the easing Gr7 or otherwise arranged, as desired.

i A swieli blade. 2l pivolally n'iounted upon a shaft arranged wilhiu lhepocket 'l betuven the Contact portions (l and 7 of `the conductors Q and l :so aS to he whollyv beneath the bil in Said pocker. There may be 2l as desired alone' of conductora :'2 and l presenfy as disclosed particularly in Fig. 2. Each sel; of conductors has its respeeive rigid Contact portions 9 and 10 and appropriate eonacts l'or eonnectioii with main and branch lines.

The switch 'bladeaare inenla'ted from shafl; and from each other by suitable sulating material Q5. also ezrff by sliafit.

one. `lor each Set' i arn.. rigidly eonneeled :it one end o'll ine. shall and projects upwardly above lhe` level oli the oil and. has` slot oonnerftion with a rod .slidalily inounled ina healingy liornied in ille easing. An opera liniij ln ndle i. is pivolally mounled as al. Ill ex-n teriorly oi ille panel hof; and has sloy eoul 2li willi lhe outer end ol' the si whereby when lhe operal'ing handie is moved from a. vertical position an shown by 'full lines in Fin'. 1 lo a horizonlal 'poeiifion as shown hy Vlhe dolledlines in said ligure. the rod will be slid iiiwaidly and lhe swi'l'eh blade will he mored lroni au. on l'o an oi position.

iinv suia'ble. means may be eniploved l'or reainine lliey door ol the panel hoi: aiiainsl. being opened while ihe swiieh blades. are in the on posilion. For this; purpose. the drawings illustrate a laleh har -lil whieh is slidably mounted on llie innerl surliaee/ ol' lhe. door lil'.

oliset to engage behind ay portion ill ol" the panel box when in loelingiposilion. "he,

The upper end ol' this bar is laieh bar is positivelyv held againslinove- A menl' oulIv oi" loeli'ing posiiion. is howeverr` provided wilh a noteh ill) l'heie in arranged so as, to stand in posilion lo ro- (feive he extension 35 when lille handle is lii'own inlo the oli1 position. as in Ifile'. il. rl`liii;s:i':lie handle il() niusl. be in 'ihe oil po- .siliom and ihe swileh blades 2l (,oiisequently also in the. oli posil'ion. beioie. il is possible lo eiwingg' ille door open. 'l`he elianeeal or' a destructive are at eilhei' ol" lhe i'ixed contacts l2 and lil are, lhus posilively avoided.

il .suitable lension Sprin;` Vl() niay be conneeled wil'h i'he laieh bar lo urn-e il', normally toward locking position .il desired,

'The lzdeh bar 33 may be provided willi an exlension il ar its upper end vlor limitiingi 'the closingniovenienl oi the door except when ihn" handle El() in l'he oil'`rr` posil'ion and the laieh hai' is lowered.

v'iVluniever il is neeessary lo inspeet the switeh mechanism. or parlieularly lilie parts within the easing' (i. the door may be swung open.y lhal. is 'from the verlieal position ol Fig. l lo the horizontal position of Filo'. il. and brought lo rest upon a slop braelfel l2 so thai; lhe. ineel'ianiain may be readily in- Speetedor repaired, while in this convenient table-like. position.

rThe shape of the asinej G is auch Chai; when in l l'iorizontal position it provides` a` pocket', or i'e si\i\oir 4 indepeuderl'.y of ljhe poedel. l into izif'liieli. oil in s?. poizloi';

The plaie, Vin" innesco i freely flows as the door was swung downwardly, leaving 'he pocket i' substantially empty ot oil and all ot' the moving contacts and other parts therein, as well as amv auxiliary mechanism contained with the Iasing, tree for inspection and repairs liv 'the simple ren'ioval ot a cover plate il which forms a part oi said casing, and which is then in a horizontal position so that it may he easily and conveniently removed without danger or likelihood of' wasting any ot the oii. lill oit' the parts swung out with the door, are entirely free ot engagement with any live parts and may he handled without danger to the operator.

is many changes conld he made in construction without departing from the scope of the invention as detined in the 'tollowing claims, it is intended that all matter contained in the above description or shown in the accompanying drawings, shall he interpreted as illustrative only and l'not in a. limiting sense.

' lt should be pointed out that while the cover plate 44 controls an Aopening into the casing` (il which opening is beneath the level of the oi, when the ,casing is in its vertical. or operative position, yet this cover plate is v positively' concealed and protected by the walls ot the panel hor; and therefore cannot he removed or molested so longl as the casing G stands in its operative position. lt

can only `loe removed after the casing G has heen swung downwardly and the oil therefore displaced fromadjacent the opening.

Having thus described my invention what l claim as new and desire to secure hy lietters Patent is l. ln an oil switch, an oil reservoir having switch mechanism therein, means whereby the reservoir may be moved to displace the oil therefrom, and an auxiliary reservoir integral therewith to receive the oil from the iirst reservoir.

2. in an oil switch, an oil reservoir havingl switch mechanism therein, a pivotal support for the reservoir whereby the reservoir may he tilted to displace the oil therefrom, and an anxiliary reservoir carried thereby to receive the oil from the lirst reservoir.

In an oil switch, an oilA reservoir having switch mechanism therein, a pivotal sup-- port for the reservoir wherein)y the reservoir y"lne-y, be 'tilted to displace the oil therefrom, means for limiting the pi votal movement ot' the reservoir, and an auxiliary reservoir carried thereby and adapted to receive and contain the oil-trom the first reservoir when said first reservoir is vtally swunoj and said. limiting means is eiecl'ive.

4. An oil switch comprising` an oil container having` switch mechanism therein, the container being,` movable from an operative inaccessible position to an inopera- 'tive position oi" accessibility, the container having` a part adapted to contain the oil in a position sul inci',gingl thc switch mechanism when the container is in ils inaccessible position, and thc container further havinga parl to contain thc oil tree oi the switch mechanism when thc container is in its acccssihlc position.

5. An oil switch comprisingiv an oil container which is moi'alile into two positions to alter the position o'f the oil therein, the container having; an openingr trom omA wall thercolf disposed to stand hcnealh thc oil lcvcl when the container is in one ot' its positions and to stand ahovc the oil level when the container is in its other position, a c losure t'or said opening, and means adapted to prevent removal ot said closure whileI the container is in a position with said openingY beneath the oil level.

l. ln an oil switch, a container, a casing,- there''or having a door upon which the container is mounted to swing` into and out of the casing", the container having,Y switch mechanism therein disposed to stand hcneath the level ot' the oil within the container when the door is closed, thc container having' a pocket therein to receiye thev oil out oi' sulmicrgringr relation with said switch mechanism. when the door is open, terminal contacts for said mechanism arranged cxtcriorly ot' the .container and movable therewith, stationary contacts within the casing into and'out ot' engagement with which said terminals move when thc door is swung, and means connu-,ted to he operated hy the movements oi' the door Jfor interposing'a barrier tor one of said stationar \Y contacts when the door is swung open,

7. it switch comprising a switch ,mechanism, and an oil-containing receptacle theretor, said receptacle being of such shape that when it is in one position the switch mechanism is immersed in the oil and when it is in another position the oil is in a from the switch mechanism. i

8. ln an oil switch, an oil reservoir movahle into two positions, switch mechanism therein, and said reservoir being shaped to provide two localities each adapted to contain oil in accordance with the position of the reservoir.

9. A switch comprising a switch mechanism, an oil-containing receptacle therefore, and means for supporting the receptacle in two positions, said receptacle hein?,` of such shape that when it is in one position the switch mechanism is inm'iersed in the oil and position tree when in the other position the switch mejchanisni is free from the oil.

it). A switch comprising` a switch mechanism, an oil-containing receptacle therefor means for supporting the receptacle in two positions, said receptacle being'ol a yshape sach that when in one position the switch 21. A switch mechanism compifsng ing having a door pvotaly mcmztecl ic g1 vc entrance hccnto, a swch dcvce :uzmgc Wil-hin hc casing being carc by 'the door t0 swing therewith, staticumy eml'mlfs of Opposite polmiy arranged Within thc casing, thc swfch device comprising n pair o contacts mcvabc into and out 0f engagement Wih said Stationary termnu by dosing and, Opening movement espcctivcly the door, said switch device also ncudng a in dm presence 

